Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64, 1603-1608

https://doi.org/10.11118/actaun201664051603
Published online 2016-10-31

Changes in the Content of Soil Phosphorus after its Application into Chernozem and Haplic Luvisol and the Effect on Yields of Barley Biomass

Tomáš Lošák1, Jaroslav Hlušek1, Ivana Lampartová1, Jakub Elbl2, Gabriela Mühlbachová3, Pavel Čermák3, Jacek Antonkiewicz4

1Department of Environmentalistics and Natural Resources, Faculty of Regional Development and International Studies, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic
2Department of Geology and Pedology, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic
3Crop Research Institute in Prague, Drnovská 507/73, 161 06 Prague 6, Czech Republic
4Department of Agricultural and Environmental Chemistry, University of Agriculture in Krakow, al. Mickiewicz Adam 21, 30–120 Krakow, Poland

The pot experiment was established in vegetation hall in the year 2015. Spring barley, variety KWS Irina, was grown. Two different soils – chernozem from Brno (with a low phosphorus content and alkali soil reaction – 7.37) and haplic luvisol from Jaroměřice nad Rokytnou (with a high phosphorus content and slightly acid soil reaction – 6.01) were used for comparison. The rates of phosphorus in the form of triple superphosphate (45 % P2O5) were increased from 0.3 – 0.6 – 1.2 g per pot (5 kg of soil – Mitscherlich pots). Nitrogen was applied in the form of CAN (27 % N) at a rate of 1 g N per pot in all the treatments incl. the control. Using statistical analysis, significant differences were found between the two soil types both in terms of the postharvest soil P content and yields of aboveground biomass. The content of post‑harvest soil phosphorus increased significantly with the applied rate (96 – 141 – 210 mg/kg in chernozem and 128 – 179 – 277 mg/kg in haplic luvisol). Dry matter yields of the aboveground biomass grown on chernozem were the lowest in the control treatment not fertilised with P (38.97 g per pot) and increased significantly with the P rate applied (46.02 – 47.28 g per pot), although there were no significant differences among the fertilised treatments. On haplic luvisol phosphorus fertilisation was not seen at all, demonstrating that the weight of the biomass in all the treatments was balanced (48.12 – 49.63 g per pot).

Funding

This study is a part of the project of NAZV No. QJ 1530171 called “Extension of applicability and actualization of categories for determination of the content of available macro‑elements and microelements in soil for ensuring the sustainability of fertility and productive capability of agricultural soils” which is financed by the Ministry of Agriculture of the Czech Republic.

References

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